Rotary mop device

ABSTRACT

A rotary mop device comprises a mop tube, a push-to-rotation means, a thread strip and a mop frame body. The mop tube is consist of a first mop tube and a second mop tube, the push-to-rotation has a case body with a driving element and an engaging corresponding element being provided in the case body, the case body being provided on the inner surface of the second mop tube, the driving element has a plural bump engaging parts and the engaging corresponding element has a plural bump engaging parts, the thread strip is fixed on inner surface of the mop tube, the mop frame body is provided below the second mop tube.

FIELD OF THE INVENTION

The present invention relates to a rotary mop device, and more particularly, to a rotary mop device with a push-to-rotation means.

BACKGROUND OF THE INVENTION

In order to clean environment, it often uses a floor mop as a cleaning tool. Traditionally, the mop strips have to be repeatedly washed and wrung out to clear a large area of the floor, but it is very inconvenient in use. It seems that the cleaning work has become drudgery, because the user has to bend his back to wash the mop strips in the water tank. Therefore, some mop industries adopt the design of rotation-type mop tube to dry out the water of the mop strips by the centrifugal force, and it could be called a novel structure and intimate design. However, the design of a plurality of commercially available floor mops with rotary mop tube is not very well, and there are still some drawbacks of the structure of floor mops to be improved.

As can be seen from FIG. 1, FIG. 1 illustrates a sectional perspective view of a conventional rotary mop. Rotary mop 100 includes a grip tube 10, a rotating tube 11, a spiral-shaped rod 12, a unidirectional bearing 13 and a cylindrical-oriented piece 14.

The user can push downward the grip tube 10, and the spiral-shaped rod 12 is pushed downward therefor. The unidirectional bearing 13 applied by a force in a not-rotation direction is engaged with the cylindrical-oriented piece 14 rotated by the applied force so that the rotating tube 11 is accordingly rotated, and a mop frame body provided below the rotating tube 11 can thus dry out the water by the centrifugal force.

When the user pulls upward the grip tube 10, the cylindrical-oriented piece 14 is pulled upward by the spiral-shaped rod 12 to separate from the unidirectional bearing 13 and keep the unidirectional bearing 13 rotating in the rotatable direction. The rotating tube 11 thus keep rotating. The mop frame body continuously rotates to dehydrate water by the relative downward and upward movements between the grip tube 10 and the rotating tube 11.

Since the cost of unidirectional bearing 13 is high, the above rotary mop 100 has the drawback in cost. Moreover, since the unidirectional bearing 13 is designed to rotate in only one direction, the direction of the spiral-shaped rod 12 must therefore be limited to one direction. Otherwise, the above rotary mop 100 can not be rotated in a way while being pushed downward or is kept rotating while being pulled upward. The direction limitation of the spiral-shaped rod 12 increases the chance of mistaken installation in the factory. Furthermore, because the cylindrical-oriented piece 14 is engaged with the unidirectional bearing 13 in a planar way, there will have a gap and separation of the engagement between the cylindrical-oriented piece 14 and the unidirectional bearing 13 while being pulled upward. This kind of gap and separation is not steady and very short in length, so it may wear out the engaging parts when a sudden instant force is applied in the engaging parts of the cylindrical-oriented piece 14 and unidirectional bearing 13 as well. It thus shortens the life duration of the rotary mop device 100 or makes the device out of order.

SUMMARY OF THE INVENTION

The present invention is designed with following characteristic features to improve the above drawback of the conventional rotary mop device.

A rotary mop device of the present invention comprises: means of mop tube, having a first mop tube and a second mop tube, the first mop tube bonding with the upper portion of the second mop tube, the outer diameter of the second mop tube being smaller than the inner diameter of the first mop tube; a thread strip, having thread structure on the surface thereof, the upper portion of the thread strip being fixed on the inner surface of the means of mop tube; means of push-to-rotation, having a case body with a driving element and an engaging corresponding element provided in the case body from up to down, the case body being provided on the inner surface of the second mop tube, wherein a convex structure is provided on the lower surface of the driving element, a plural bump engaging parts being provided on the convex structure, a concave structure being provided on the inner upper surface of the engaging corresponding element, engaging corresponding parts being provided on the outer surface of the concave structure to correspond to the plural bump engaging parts, a gap provided between outer diameter of the driving element and inner diameter of the case body, the engaging corresponding parts being fixed on the inner surface of the case body; and a mop frame body, having a mop frame and a mop cotton, the mop frame being provided below the means of mop tube.

When the first mop tube is being pushed downward, the driving means is pushed downward by the applied force from the thread structure of the thread strip, so that the plural bump engaging parts are engaged with the engaging corresponding parts, and while the first mop tube is being pushed downward, the case body of the means of push-to-rotation is rotated by the applied force from the thread structure so that the second mop tube is thus rotated.

When the first mop tube is being pulled upward, the driving element is pulled upward by the applied force from the thread structure of the thread strip, so that the plural bump engaging parts are separated from the engaging corresponding parts to pull the first mop tube.

A central hole of the engaging corresponding parts is always not applied by the force from the thread structure of the thread strip.

The engaging corresponding element, which is not a unidirectional bearing, is allowed to be rotated in both directions. It thus removes the need that the thread direction must match with the direction of the unidirectional bearing. By providing the convex structure on the lower surface of the driving element of the means of push-to-rotation and providing the concave structure on the inner upper surface of the engaging corresponding element, the present invention is achieved by engaging the driving element with the engaging corresponding element in a 3-dimension manner, and thus the device will be less worn out.

Moreover, the present invention removes the installation of the unidirectional bearing, and uses a simple structure and less expensive driving element and engaging corresponding element. The cost is thus down.

BRIEF DESCRIPTION OF THE DRAWINGS

The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings, wherein:

FIG. 1 illustrates a sectional perspective view of a conventional rotary mop;

FIG. 2 illustrates an exploded view of a first embodiment of the present invention;

FIG. 3 illustrates a stereographic view of a first embodiment of the present invention;

FIG. 4 illustrates a sectional view of a first embodiment of the present invention;

FIG. 5 illustrates a sectional view of a first embodiment of the present invention and a dehydration device, wherein the first mop tube is at a status of push-downward;

FIG. 6 illustrates an enlarged sectional view of the first embodiment in which the first mop tube is in a status of pushed-down;

FIG. 7 illustrates a sectional view of a first embodiment of the present invention and a dehydration device, wherein the first mop tube is at a status of pulled-up;

FIG. 8 illustrates an enlarged sectional view of the first embodiment in which the first mop tube is in a pulled-up status; and

FIG. 9 illustrates a second embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Please referring to FIG. 2 to FIG. 4. FIG. 2 illustrates an exploded view of a first embodiment of the present invention. FIG. 3 illustrates a perspective view of a first embodiment of the present invention. FIG. 4 illustrates a sectional view of a first embodiment of the present invention. In the present invention, the rotary mop device 200 comprises a mop tube 2, a means of push-to-rotation means 3, a thread strip 4 and a mop frame body 5.

The mop tube 2 includes a first mop tube 21 and a second mop tube 22. The first mop tube 21 is bonded with the upper portion of the second mop tube 22, wherein the outer diameter of the second mop tube 22 is smaller than the inner diameter of the first mop tube 21, so that the second mop tube 22 is able to move upward and downward in the inner diameter of the first mop tube 21.

The means of push-to-rotation 3 is provided on the inner surface of the upper portion 221 of the second mop tube 22. The means of push-to-rotation 3 has a driving element 31, an engaging corresponding element 32, a case body 33 and a balancing element 36, wherein the driving element 31 and the engaging corresponding element 32 are provided in the case body 33 from up to down, and the engaging corresponding element 32 is formed integrally in the case body 33 therein, and the balancing element 36 is provided in the inner diameter of the lower portion of the engaging corresponding element 32. A contact portion 341 of the driving element 31 is latched with the upper contact portion 321 a in the upper of the through hole 321, and the balancing element 36 is latched with the bottom contact portion 321 b in the bottom of the through hole 321. The lower portion of the driving element 31 is a convex structure, which is a cone shape body in a preferred embodiment, and a plurality of bump engaging parts 34 are provided on the surface of the convex structure. The bump engaging parts 34 are bump structure being thread-shaped provided, and the upper portion of the engaging corresponding element 32 is a concave structure, which is a concave structure with a cone shape in a preferred embodiment. The surface of the concave structure is provided with the engaging corresponding parts 35 engaged with the bump engaging parts 34 In sake of clearance, the engaging corresponding parts 35 in FIG. 2 is represented with solid line in steady of its real dotted line.) The driving element 31 and the engaging corresponding element 32 have a through hole 311 and a through hole 321 respectively, and the through hole 311 is corresponded to the through hole 321. A gap is provided between the outer diameter of the driving element 31 and inner diameter of the case body 33, and the engaging corresponding element 32 rotates while the case body 33 rotates. The engaging corresponding element 32 is fixed on the inner surface of the case body 33.

As shown in FIG. 4, a thread strip 4 has a thread structure 41 on the surface thereof. In the sectional view of the present invention, the thread structure 41 of the thread strip 4 are appeared without cutting to its section view. The upper portion of the thread strip 4 is fixed on the inner surface of the first mop tube 21 of the mop tube 2 by a combination element (not shown). In the present invention, the through hole 311 of the driving element 31 is applied the force by the thread strip 4, and the through hole 321 of the engaging corresponding element 32 is too big in diameter to be applied a force by the thread strip 4. The balancing element 36 is for stabilize the case body 33. The potential vibration resulted from the movement of the thread strip 4 is reduced by the balancing element 36.

Mop frame body 5 is consisted of a mop frame 51 and mop cotton 52. The mop frame 51 of the mop frame body 5 is connected to the bottom of the second mop tube 22 of the mop tube 2.

Referring to FIG. 5 and FIG. 6, FIG. 5 illustrates a sectional view of a first embodiment of the present invention together with a dehydration device, wherein the first mop tube is being pushed downward, and FIG. 6 illustrates an enlarged sectional view of the first embodiment in which the first mop tube is being pushed downward. When the first mop tube 21 is pushed downward, the thread strip 4 is moved downward at the same time. Since the thread structure 41 of the thread strip 4 is in contact with the inner surfaces of the through hole 311 of the driving element 31, and the case body 33 fixed with the engaging corresponding element 32 having a through hole 321 not in contact with the thread strip 4, it thus drives the driving element 31 to engaged the plural bump engaging parts 34 of the driving element 31 to engage with the engaging corresponding parts 35 of the engaging corresponding element 32. As the first mop tube 21 is pushed downward, due to the engaging corresponding element 32 is fixed on the inner surface of the inner diameter of the second mop tube 22, the push-to-rotation 3 is rotated by the applied force from the thread strip 4 so that the second mop tube 22 is rotated, and the frame body 5 is rotated along the rotating direction D1 in the dehydration tank 81 of the dehydration device 8. The rotary mop device 200 will be difficult be upside down the dehydration device 8 because the dehydration tank 81 of the dehydration device 8 provides a steady support for the frame body 5.

In the present invention, when the engagement between the driving element 31 and the engaging corresponding element 32 of the means of push-to-rotation 3 is pushed downward to the end, the driving element 31 is separated from the engaging corresponding element 32 instantaneously by the counter-reaction force.

Referring to FIGS. 7 and 8, FIG. 7 illustrates a sectional view of a first embodiment of the present invention and a dehydration device, wherein the first mop tube is being pulled-up, and FIG. 8 illustrates an enlarged sectional view of the first embodiment in which the first mop tube is being pulled-up. The engaging part 34 of the driving element 31 separates from the engaging corresponding part 35 of the engaging corresponding element 32. Due to the central hole of the engaging corresponding element 32 is not forced by the thread structure of the thread strip 4, the engaging corresponding element 32 maintains the original rotation direction. The dehydration of the rotary mop device 200 is achieved by the user by repeating pushing downward and pulling upward.

Referring to FIG. 9, it illustrates a second embodiment of the present invention. The composition elements of the rotary mop device 200 a are the same as the first embodiment. Same elements are labeled with the same reference numbers for corresponding description. The difference is that an extensible mop tube component 23 may be assembled at the upper end of the first mop tube 21 of the mop tube 2 in order to adjust to a suitable height for different users for convenience during use. The extensible mop tube component 23 is fixed on the first mop tube 21 by a fixed element 7. The functional manner and principles are the same as that of the first embodiment so they are not repeated herein.

As can be appreciated from the above embodiments, the rotary mop device of the present invention has industry worth which meets the requirement for a patent. The above description should be considered as only the discussion of the preferred embodiments of the present invention. However, a person having ordinary skill in the art may make various modifications to the present invention. Those modifications still fall within the spirit and scope defined by the appended claims. 

1. A rotary mop device, comprising: means of mop tube, having a first mop tube and a second mop tube, the first mop tube bonding with the upper portion of the second mop tube, the outer diameter of the second mop tube being smaller than the outer diameter of the first mop tube; a thread strip, having thread structure on the surface thereof, the upper portion of the thread strip being fixed on inside surface of the means of mop tube; means of push-to-rotation, having a case body with a driving element and an engaging corresponding element provided in the case body from up to down, the case body being provided on the inner surface of the second mop tube, wherein a convex structure is provided on the lower surface of the driving element, a plural bump engaging parts being provided on the convex structure, a concave structure being provided on inner upper surface of the engaging corresponding element, engaging corresponding parts being provided on the outer surface of the concave structure to correspond to the plural bump engaging parts, a gap provided between outer diameter of the driving element and inner diameter of the case body, the engaging corresponding parts being fixed on the inner surface of the case body; a mop frame body, having a mop frame and a mop cotton, the mop frame being provided below the means of mop tube; wherein when the first mop tube is being pushed downward, the driving means is pushed downward by the applied force from the thread structure of the thread strip, so that the plural bump engaging parts are engaged with the engaging corresponding parts, and while the first mop tube is being pushed downward, the case body of the means of push-to-rotation is rotated by the applied force from the thread structure so that the second mop tube is thus rotated, wherein when the first mop tube is being pulled upward, the driving element is pulled upward by the applied force from the thread structure of the thread strip, so that the plural bump engaging parts are separated from the engaging corresponding parts to pull the first mop tube, wherein a central hole of the engaging corresponding parts is always not applied by the force from the thread body of the thread strip.
 2. The rotary mop device as claimed in claim 1, wherein the upper portion of the thread strip is fixed on the inner surface of the first mop tube.
 3. The rotary mop device as claimed in claim 1, wherein the concave structure in the lower portion of the driving element is a cone shape body, and the bump engaging parts are bump structure being lengthwise provided.
 4. The rotary mop device as claimed in claim 1, wherein upper portion of the engaging corresponding parts of the engaging corresponding element is a concave structure with cone shape.
 5. The rotary mop device as claimed in claim 1, wherein the means of push-to-rotation is provided on the inner surface of the upper portion of the second mop tube.
 6. The rotary mop device as claimed in claim 1, wherein the means of mop tube is able to be lengthened, and the second mop tube is able to move upward or downward in the inner surface of the first mop tube.
 7. The rotary mop device as claimed in claim 1, wherein a balancing element is provided in the case body and is under the engaging corresponding element.
 8. The rotary mop device as claimed in claim 1, wherein the second mop tube is able to move up and down in the inner diameter of the first mop tube. 